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COS D2
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Introduction:
It is a Power Factor Monitoring Relay. It is best suitable for balanced 3 Phase 3 wire Pump loads for No Load or Belt Failure or Dry Run conditions. It is effective on low rating pump loads (1 Phase / 3 Phase Submersible Pumps & Magnetically Coupled Pumps). It is designed to monitor Power Factor & protect the pump.
Features:
· Monitors Low Power factor of the connected load.
· Energizing Delay (1-10 Sec.)
· Trip Delay (1–10 Sec.)
· Adjustable COSf settings (0.1 – 0.9).
· Available for any System Voltage.
· 1 CO output rated 5A / 230V AC (Resistive).
· LED indications for Power ON & Fault.
· Auto / Manual Reset.
· Sleek DIN Rail mounted housing.
Application Areas:
Submersible Pump Control Panels. Air Handling Unit Fans. Conveyor Motor panels for zero speed sensing. Motors with Fluctuating Load. Chemical Pumps.
Technical Specifications:
Sr.
Parameter
Specifications
1 Supply Voltage System 3 Ph/4 W, 110/240/380/415 V AC ±20%; Auxiliary —
2 Ext. Input 110 / 240 / 380 / 415 V AC ±20%
3 Output contact 1 CO (2 CO)
4 Trip setting Under Current —; Over Current —; Under Frequency —; Over Frequency —; Under Power N.A.; Over Power N.A.; Cos-Ø 0.1 to 0.9 (adjustable); Cos-Ø —; Reverse Power —
5 Input Current Range
6 Power On Delay 1 - 10 secs. (adjustable)
7 Trip Time Delay 1 - 10 secs. (adjustable)
8 Resetting Auto / Manual
9 Weight 550 gms.
10 Dimensions (mm) Overall (L x W x D) 76 x 56.5 x 117.5; Mounting (L x W) 67 x 46

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